add convenience script for local setup

local-install.fish

@@ -0,0 +1,53 @@
+# Install dotfiles (and optionally tools) to the current macOS host,
+# for example when provisioning within a VM.
+
+set -f DEFAULT_FULL_NAME 'Brent Schroeter'
+
+argparse -S 'email=' 'full-name=' install-mise overwrite -- $argv
+
+if not set -ql _flag_full_name
+    set -f _flag_full_name "$DEFAULT_FULL_NAME"
+end
+if not set -ql _flag_email
+    echo '--email is required for VCS configuration' >&2
+    return 1
+end
+
+mkdir -p ~/.config
+
+if set -ql _flag_overwrite; or not test -e ~/.gitconfig
+    cp ./assets/git/gitconfig ~/.gitconfig
+    sed -i '' "s/{{ VCS_EMAIL }}/$_flag_email/" ~/.gitconfig
+    sed -i '' "s/{{ VCS_NAME }}/$_flag_full_name/" ~/.gitconfig
+else
+    echo 'Git config already exists. Use --overwrite to replace it.' >&2
+end
+
+if set -ql _flag_overwrite; or not test -e ~/.config/jj/config.toml
+    mkdir -p ~/.config/jj
+    cp ./assets/jj/config.toml ~/.config/jj/
+    sed -i '' "s/{{ VCS_EMAIL }}/$_flag_email/" ~/.config/jj/config.toml
+    sed -i '' "s/{{ VCS_NAME }}/$_flag_full_name/" ~/.config/jj/config.toml
+else
+    echo 'JJ config already exists. Use --overwrite to replace it.' >&2
+end
+
+if set -ql _flag_overwrite; or not test -e ~/.config/helix
+    if test -e ~/.config/helix
+        rm -r ~/.config/helix
+    end
+    cp -r ./assets/helix ~/.config/helix
+else
+    echo 'Helix configs already exist. Use --overwrite to replace them.' >&2
+end
+
+if set -ql _flag_install_mise
+    brew install mise
+    if set -ql _flag_overwrite; or not test -e ~/.config/mise/config.toml
+        mkdir -p ~/.config/mise
+        cp ./assets/mise/config.toml ~/.config/mise/
+    else
+        echo 'Mise config already exists. Use --overwrite to replace it.' >&2
+    end
+    mise install
+end